It has quite quickly grown on me. Think the reaction in Ep 1 to a stately home was a bit over the top, so hopefully some of the more overexcitable characters will either calm down or get filtered out.
Interesting that with 20 of them in the room how quickly the herd mindset forms.
If the traitors were playing as a collective (I assume they're not, and this "we'll back each other" stuff will come unravelled eventually...), then a high-risk strategy for the traitors would be to nominate themselves as the three. One guaranteed to go but if the faithfuls know the traitors chose the three then the traitor outed would be taken as the "misdirect", and the other two would be taken as the "real" targets, and utterly removed from suspicion and could float entirely under the radar for the rest of the game.
I do keep thinking I have seen all of them on TV before though - Imran, Andrea and Aaron especially seem so familiar!